# MCQs Quadratic Equation – 1

First-year (Intermediate) Pre-Engineering mathematics examination preparation.
Pakistan All boards Pre-Engineering Mathematics MCQs Online Test

1. The equations involving radical expressions of the variable are called

2. The sum of all four fourth roots is 16 is

3. The quadratic formula for solving the equation $ax^2 + bx + c =0$ is $(a\ne 0)$

4. To convert $4^{1+x} + 4^{1-x} =10$ into quadratic, the substitution is

5. $(-1 + \sqrt{-3})^5 + (-1 – \sqrt{-3})^5$ is equal to

6. The equation which remains unchanged if $x$ is replaced by $\frac{1}{x}$, then it is called

7. The convert $ax^{2n} + bx^n + c =0 (a\ne 0)$ into quadratic form, the correction substitution

8. The product of all four fourth roots of 81 is

9. The product of all cube roots of $-1$ is

10. The cube roots of $-1$ are

11. The sum of all four fourth roots of unity is

12. Solution set of the equation $x^2 – 4x + 4 = 0$ is

13. The cube roots of unity are

14. The equation in which variable quantity occurs in the exponent is called

15. $16\omega^4 + 16 \omega^8$

16. The equation $ax^2 + bx + 9 =0$ will be quadratic if

17. The complex cube roots of the unit are __________ each other.

18. The sum of all cube roots of 64 is

19. The roots that satisfy the radical free equation but not the radical equation are called

20. The product of all four fourth roots of unity is

An equation of the form $ax^2 + bx + c = 0$ is called a Quadratic Equation, where $a, b,$ and $c$ are all real numbers and $a\ne0$. This generic form of Quadratic Equations is a second-degree equation in variable $x$.

• The equation $ax^2 + bx + 9 =0$ will be quadratic if
• Solution set of the equation $x^2 – 4x + 4 = 0$ is
• The quadratic formula for solving the equation $ax^2 + bx + c =0$ is $(a\ne 0)$
• The convert $ax^{2n} + bx^n + c =0 (a\ne 0)$ into quadratic form, the correction substitution
• The equation in which variable quantity occurs in the exponent is called
• To convert $4^{1+x} + 4^{1-x} =10$ into quadratic, the substitution is
• The equation which remains unchanged if $x$ is replaced by $\frac{1}{x}$, then it is called
• The equations involving radical expressions of the variable are called
• The roots that satisfy the radical free equation but not the radical equation are called
• The cube roots of unity are
• The cube roots of $-1$ are
• The sum of all cube roots of 64 is
• The product of all cube roots of $-1$ is
• $16\omega^4 + 16 \omega^8$
• $(-1 + \sqrt{-3})^5 + (-1 – \sqrt{-3})^5$ is equal to
• The sum of all four fourth roots of unity is
• The product of all four fourth roots of unity is
• The sum of all four fourth roots is 16 is
• The product of all four fourth roots of 81 is
• The complex cube roots of the unit are _______ each other

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